Examples of org.odmg.Implementation.newTransaction()

org.odmg.Implementation.newTransaction()
Create a Transaction object and associate it with the current thread. @return The newly created Transaction instance. @see org.odmg.Transaction

        tx.begin();
        // create DList and bound by name
        DList list = odmg.newDList();
        db.bind(list, name);
        tx.commit();
        tx = odmg.newTransaction();
        tx.begin();
        Object obj = db.lookup(name);
        tx.commit();
        assertNotNull("binded DList not found", obj);

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        tx.begin();
        Object obj = db.lookup(name);
        tx.commit();
        assertNotNull("binded DList not found", obj);


        tx = odmg.newTransaction();
        tx.begin();
        // add objects to list
        for (int i = 0; i < 5; i++)
        {
            DListObject a = createObject(name);

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        {
            DListObject a = (DListObject) iter.next();
            assertNotNull(a);
        }


        tx = odmg.newTransaction();
        tx.begin();
        ((TransactionExt) odmg.currentTransaction()).getBroker().clearCache();


        // lookup list and check entries
        DList lookedUp = (DList) db.lookup(name);

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            DListObject a = createObject(name + "_new_entry");
            list.add(a);
        }
        tx.commit();


        tx = odmg.newTransaction();
        tx.begin();
        ((TransactionExt) odmg.currentTransaction()).getBroker().clearCache();
        lookedUp = (DList) db.lookup(name);
        iter = lookedUp.iterator();
        iter1 = list.iterator();

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        Database db = odmg.newDatabase();
        //open database
        db.open(databaseName, Database.OPEN_READ_WRITE);


        // create test objects
        Transaction tx = odmg.newTransaction();
        tx.begin();
        // add objects to list
        for (int i = 0; i < 5; i++)
        {
            tx.lock(createObject(name), Transaction.WRITE);

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        Database db = odmg.newDatabase();
        //open database
        db.open(databaseName, Database.OPEN_READ_WRITE);
        // get DList and fill with objects
        DList list = odmg.newDList();
        Transaction tx = odmg.newTransaction();
        tx.begin();
        for (int i = 0; i < 5; i++)
        {
            DListObject a = createObject(name);
            list.add(a);

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        }
        // bind the new list
        db.bind(list, name);
        tx.commit();


        tx = odmg.newTransaction();
        tx.begin();
        Object obj = db.lookup(name);
        tx.commit();
        assertNotNull("binded DList not found", obj);

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            DListObject a = (DListObject) iter.next();
            assertNotNull(a);
        }
        assertEquals(5, list.size());


        tx = odmg.newTransaction();
        tx.begin();
        ((TransactionExt) odmg.currentTransaction()).getBroker().clearCache();
        DList lookedUp = (DList) db.lookup(name);
        tx.commit();
        assertNotNull("binded DList not found", lookedUp);

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        // get facade instance
        Implementation odmg = OJB.getInstance();
        Database db = odmg.newDatabase();
        //open database
        db.open(databaseName, Database.OPEN_READ_WRITE);
        Transaction tx = odmg.newTransaction();


        tx.begin();
        DList list = odmg.newDList();
        // bind the list to the name:
        db.bind(list, name);

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        }
        assertEquals(5, list.size());
        tx.commit();


        // delete two items
        tx = odmg.newTransaction();
        tx.begin();
        ((HasBroker) odmg.currentTransaction()).getBroker().clearCache();
        DList lookedUp = (DList) db.lookup(name);
        assertNotNull("database lookup does not find the named DList", lookedUp);
        assertEquals("Wrong number of list entries", 5, lookedUp.size());

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